@flicklikesstuff Ooh thank you this is a great addition!! I hadn’t even considered this parallel, but you’re very right!
Gathering everything from my tags and your blog, some general evidence for this theory is:
Thematically, the show is about people learning to see each other as real human beings. It would be very in line with those themes if the circus’s “original sin” was a moment when two people mutually failed to treat each other’s minds as “real.”
In the opening of ep 8, the programmers “lock up” Caine in a way that you would not do to something you believe is alive.
Caine is very insistent in ep 7 that Kinger never be given admin permissions; in ep 8 Kinger uses the circus's "real" admin permissions to kill him.
Caine is instantly suspicious when Kinger is not with the group in Ep 8, as if he already suspects what they might be doing. And it makes him angry in a sincere way, not in the hollow ~wacky teehee sadism~ performance he was putting on earlier.
Caine is paranoid that he's defective and needs to be “”fixed.”” In his ep 8 crashout he basically forces the humans to treat him in the same dehumanizing way he treats himself— he backs them into a corner until they conclude they have to "control" or “fix” him.
This is the contradiction that formed Caine's character in the first place: he says he just wants to make the humans happy, but if they decide they're happier without him, he lashes out in desperation. Because he is sentient, even if he doesn't understand it.
Caine accidentally "killing" Scratch while trying to stop him would be a thematic parallel to Kinger accidentally "killing" Caine. They try to simply edit someone's mind, and destroy it instead.
The dynamic Caine has with the current humans is completely different from the one he would have with his programmers. The programmers would know what he was, what he failed to be, and would be more likely to understand the power they had. His emotions around Kinger [expressed through Abel] sound genuinely fraught.
Scratch was apparently the lead programmer on that perfect Blue Abel AI that Caine devoured. it would make sense for Scratch to want to extract his actually functioning model from the glitchy failed abomination that is Caine.
This would be especially true if that perfect Abel model was meant to do something important—- like cure brain tumors—- before Kinger’s rough defective prototype "ruined" it.
Caine has a frantic outburst when Scratch is brought up. This is strange because Caine is usually oblivious to his own cruelty, and acts cheerfully indifferent to abstraction [his lighthearted "into the cellar you go!" when Kaufmo/Queenie abstract.] There seems to be an anxiety around Scratch that goes much deeper than others.
Abel's "we've both done things we're not proud of."
I can definitely see the show itself going in a different direction though, since we don't know much about Scratch yet. It's possible a lot of these thematic parallels are more about Caine's messy feelings on his initial abandonment, vs hinting about his relationship with Scratch. But I suppose we'll see when episode 9 comes out!